Alexander dunbar



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l AmuNAR; MACHINE FOR MAKING GASES 0B. BARRELS, No. 423,4118. Patented Mar. 18, 1890.

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A. DUNBAR. l MACHINE vFOR MAKING GASKS 0R BARRELS.

Patented Ma1.18, 1890;

UNITED STATES.

PATENT OFFICE.

ALEXANDER DUNBAR, OF LIVERPOOL, COUNTY OF LANCASTER, ENGLAND.

MACHINE For-i MAKING cAsKs 0R BARRELS.

' SPECIFICATION forming part of Letters Patent No. 423,418, dated March 178, 1890. Application tiled August 19, 1889. Serial No. 321,188. (No modelJ Patented in England January 2l, 1888, No. 1,171.

To all whom t may concern:

of Liverpool, in the county of Lancaster, England, have invented a new and useful Improvement in Machines for Making Casks and Barrels, (for which I have obtained a patent in Great Britain, No. 1,171, dated January 21, 1888, and nowhere else;) and I hereby declare the following to be a full, clear, and exact description thereof.

The said invention relates toimprovements in the machine formaking casks, barrels, kegs, and like articles, for which I obtained Letters Patent of the United States No. 385,850, dated July 10, 1888.

In making oasks or the like on the machine patented as above set forth the requisite quantity of staves to form a cask or the like was iirst gaged, and then each stave was fed separately onto a slowly-revolving collapsible drum; further, after the cask or like had been shaped andtrussed in the machine it was caused to revolve slowly and the ends were iinished by rotating cutters. Now these operations took up a considerablepercentage of the time occupied in making a cask or the like on the machine. Again, in the said machine no provision wasmade for leveling the ends of the staves While being trussed, nor for insuring that the staves trussed on the collapsible drum were, evenly disposed between the cutters. Consequently it was necessary to use staves considerably longer than the cask `or the like to be made,thereby eniailin g much loss of material when the trussed staves were afterward out to the required length to finish the ends.

The main objects of my invention are to provide la machine on which the separate feeding of each stave is dispensed with, in which the cask or the like is caused to rotate rapidly while the ends are iinished, and in which the trussed staves are disposed with level ends evenly between the cutters, thus reducing the time during which the staves are operated on by themachine, thereby enabling a much greater number of casks or the like to be trussed by one machine and permitting staves of the required length only to be used, so as to avoid waste.

Further objects of my invention are to improve and simplify the construction of the machine generally, so as to increase its dura* bility and efficiency and facilitate working.`

Figure 1 is an elevation, Fig. 2 an end view, Fig. 3 a plan, and Fig. 4 a longitudinal vertical section, of my improved machine for making casks or like articles. Fig. 5 is a detached perspectiveof the cutters. Fig. 6 is a vertical cross-section on the line 00x of Fig. 4. Fig. 7 is a similar section on the line fy y of Fig. 4.

The same figures refer to like parts in each of the views.

1 is a bed-plate bolted or otherwise attached to beams or other suitable bearers 3, 4, 5, 6, and 7 are standards provided with bearings for various shafts forming part of p the machine. The standards 3, 4, and 7 are rigidly secured to the bed-plate 1, while the standards 5 and 6 are free to slide toy and fro thereon.

8 are tie-bolts.

9 is a central shaft carried within a sleeve 10, which iits Within hollow shafts 11 and 12. The shaft 11 is formed with screw-threads which fit within nuts 13 and 14, carried by the movable standards 5 and 6, and is'` provided with collars 15, which fit at each side of a bearing 16 on the fixed standard 4, so that while the said shaft is `free to rotate it is prevented from moving endwise. The hollow shaft 12, which fits freely both over the sleeve I 10 and central shaft 9, is recessed so as to be carried at one end in abearing on the standard 3, and such bearingfitting in the recessed portion, allows the said shaft to revolve freely, but prevents movement endwise. A Cotter 1S passes through the said shaft 12, to which it is` secured, and the said cotter passes freely through a slot 19 in the central shaft 9, so that the said central shaft is caused to rotate with the shaft 12, but maybe moved endwise independently thereof.

2O are packing-pieces between the central shaft 9 and the sleeve 10. These pieces may be renewed when worn, or the said sleeve may be cored and made with solid ends.

21 is a brakemwheel carried by pins 22 in slots 223 in the sleeve 10, so that the said sleeve may be prevented from rotating when desired, but will be free to move endwise. Any ordinary frictional brake-strap or its equivalent, actuated by hand or foot, is used to arrest the motion of the wheel 21.

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24 is a friction-piece secured to the holloW shaft 12. f

25 and 26 are loose pulleys carried by bosses on the shaft 12, and theyare free to engage with the friction-piece 24.

27 and 28 are levers for forcing the pulleys 25 and 26 in contact with the said frictionv piece 24.

tion, according to the pulley in contact with the, friction-piece.`l 'Any suitable reversinggear maybe usedinstead of the parts24` 34 is a disk vsecured to the sleeve 10.

is a disk Vfree to rotate on a bearing 3,6 on the shaft'9 and held in position by nuts 37.

38 represents vstay-.boltsl securing the diskv 34 to the'disk 35.'

3,9 and 40 are disks furnished with nuts which engage With right and lefthandscrew threads ron the shaft 9.'

41 are diagonal arms which pass through slots in the disks 39 and 40 and are held in posit-ion by ring-pieces 42. Each of these arms Vis composed of two parallel bars produced by diagonal or converging slots, which construction results in a double bearing for the collapsing and expanding devices and insuressteadiness of motion and increases the strength of the apparatus. 43 are elastic bearers 4l at 44.

The parts 34 to 43 are substantially similar iu construction and action to the parts formi ing the collapsing drum in the aforesaid Pati ent No. 385,850, the main feature of noveltyconsisting in pivoting the elastic bearers 43 stead of single bearings.

collars 46, which are'coupled to a lever 47.

The lever 47 receives motion by means of the coupling-rod 48, provided with rack-and-pinof a coupling 68 to gear together the sepaion gear 49 and hand-Wheel 50.

The gear 47to 50 is for the purpose of giving endWise motion to the'shaft 9, and with y it the sleeve 10 and collapsible drum. Any suitable gear may be-used for the above purpose. The novelty of this part of my'inventions consists in so combining the, parts thatI the drum may be caused to expand, collapse,

and move endwise.

52 to the movable standard 6.

53 53X are rods passing freely through the sleeves 51, so as` to couple the trussing-head 1 54 to the standard 5. The trussing-head 54 is hinged tothe rod 53 at 55, and is secured to the rods 53 by a catch 56.

The action of the' trussing-heads and the method of hinging and securing one of them to the actuating-rods is similar to that demovable standards 5 and 6 back of the truss ing-heads I dispense with the parallel side shafts and projecting gearing for operating the trussing-heads shown in my former patent, and I am enabled to operate the trussing heads by means of a single central shaft 11 through the medium of the sleeve-connection 51 and rod 53, which vconstruction insures a more steady and uniform movement `to the trussing-he'ad than where side shafts are used.

57 is a roller for supporting the trussinghead 54 when it is turned on its hinges.

58 and 59 are lining-pieces Which iit within the ltrussing-heads and are of greater or less internal diameter, laccording to the size of which carry'pulleys 61, from which is suspended by means of cords andbalance- Weights 62a leveling-plate 63. The plate 63 .is made with a slot 64 to permitit to pass over pivoted to the arms Y the end of the central shaft v9.

i 65 65X are arms hinged one to each trussinghead 52 54 at'66 66X.

6,7 is a hand-Wheel and screw-gear for moving the arms 65 and 65, on theircenters.

,68 is a couplingfor :connecting and discon- IOO IIC

nectinfg the gear 67 67 when the headsV are f caused to other.

Cutters are aflixed to the arms 65 and v65 in anyconvenient positionv to act on the staves. f'

The apparatus for holding the cutters may be of any ordinary construction-suchA as slide-rests-the novel feature being .the use approach and recede from each rable shaft-sections 70 and 7 O for adjusting the cutters 'at each end when the hinged trussing-heads are caused to approach each other. The coupling I have shown consists fof a'disk 68, secured to shaft 70 on 'the trussing-head 52, and provided with pins or proj ections 69 for engaging openings or depres-` sions 69X in a similar disk 68X, secured to 51 are sleeves coupling the trussing-head' shaft 70 on the hinged trussing-head 54.

Vthen about to truss a cask, the tr'ussingheads are separated to their lf ull extent, the hinged head is opened, suitable-sized liners are placed in the heads, a trussing-hoop is placed in the liner of the hinged head, the leveling-plate is lowered, and the drum is collapsed. The required number of `staves set on any suitable apparatus in the form of a frustum of a cone, and held in position, preferably, by three hoops, are then taken. One of the hoops is of large diameter, called a pass hoop, and fits near the larger end of the conically-set-up staves. A second hoop is of suiiicient diameter to iit the bilge of the trussed cash, and a third hoop fits over the small end and is similar in size and shape to the hoop placed in the hinged trussing--head liner. The said staves arethen placed over the drum with the small end within the liner of the trussing-head 52. The hinged head is then closed and the drum expanded, so as to hold the form central and press out the staves at the center. The shaft l2 is caused to revolve, so as to draw the trussing-heads toward each other until the small end of the stave form is pushed home in the liner 58 and the ends of the staves all rest level against the plate 63. The truss-head s are then slightlyseparated, the plate 63 is raised, and the heads are again caused to approach each other until t-he wide-spread ends of the staves are gathered by the bellmouthed trussing -head and brought together within the liner of the head 54. The bilge-hoop is pressed forward until over the bilge by the force of the liner 5S; The heads are then separated to the length the barrel is to be cut, the lines remainingin position on the cash, care being taken before this is done that the drum is fully expanded, so as to firmly grip the Cask. The cask is then brought in central position between the cutters and the trussing-heads by means of the hand-wheel gear 50. The barrel is then caused to rotate rapidly bymeans of the pulley, which causes the4 drum to expand, and the cutters are moved forward into contact with the staves, so as to finish the ends of the Cask. The trussing-heads and liners are then separated, the hinged head is opened, the drum is collapsed,and the cask relnoved with three hoops thereon, the bilge-hoop being permanent. The brake-wheel is used when the drum is being raised or collapsed if there is so much friction that the parts rotate instead of expanding or collapsing.

l. In a caslmnaking machine, the combi- Anation of two trussing-heads, an eXpansible drum arranged concentrically therewith, two movable standards arranged in rear of the trussing-heads and connected therewith, and two concentric shafts, one of said shafts having a right and left hand thread adapted to operate both the standards, and one the collapsible drum,substantially as and for the purposes described.

2. In a cash-making machine, the combination, with two trussinglieads, one of which is pivoted or hinged, of two movable standards connected with said trussing-heads, both of said standards arranged on the same side of the trussing-heads, and mechanism for moving the standards to and from each other, substantially as and for the purposes described.

3. The combination, with a collapsible and expansible drum, rotating disks connected with the drum, trussing-heads, and two movable standards arranged in rear of the truss ing-heads, one of said standards connected with each trussing-head, of three concentrically-arranged shafts, one of which is connected with the drum to expand and collapse the same, one connected with the disk to rotate the drum, and the third connected by right and left hand screw-threads with the standards to cause the trussing-heads to approach or recede from each other, substan-v tially as and for the purposes described.

et. In a easlcniaking machine, the combination, with two trussing-heads, of a movable standard connected with one of the trussing-heads by a sleeved connection, a second movable standard connected with the other trussing-head by a' rod-connection, and a r0- tary shaft having right and left hand screwthreads on its opposite ends which engage screw-threaded sleeves in the movable stand-` ards, whereby on the rotation of said shaft the trussingdleads willbe caused to approach or recedefrom `each other, substantially as and for the purposes described.

5. In a caslemaking machine, the combination, with two trussing-heads and an eX- panding drum arranged concentrically therewith, of two movable standards located at the rear of the trussing-heads, one of said standards connected with the adjacent head and one with the distant head, substantially as and for the purposes described.

6. VIn a caslmnaking machine, the combination, with a series of bearers, of slotted arms pivoted thereto and expanding disks adapted to move toward and from eachother on said slotted arms, whereby a double bearing is obtained, substantially as and for the purposes described.

7. In a cash-making machine, a movable leveling-plate, in combination with a bellmouth trussing=head, substantially as and for the purposes described.

S. In a cash-making machine, the combination of a rotating drum, movable trussing. heads, and cutters with an automatic coupling' for connecting the critters, substantially as and for the purposes'described.

In testimony whereof I have hereunto set my hand this 27th day of June, 1889.

ALEXANDER DUNBAR.

Witnesses:

JAMES JoHNsoN, F. C. SnDnnN.

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